532932-91-5

Basic information

• Product Name: trans-(1-carbonyl-2-oxo-1,2-diphenylethenediyl)(2-nitro-1-naphtholato)bis(trimethylphosphine)cobalt(III)
• CAS NO: 532932-91-5
• Molecular Weight: 621.555
• Mol File: 532932-91-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: trans-(1-carbonyl-2-oxo-1,2-diphenylethenediyl)(2-nitro-1-naphtholato)bis(trimethylphosphine)cobalt(III)(CAS DataBase Reference)
• NIST Chemistry Reference: trans-(1-carbonyl-2-oxo-1,2-diphenylethenediyl)(2-nitro-1-naphtholato)bis(trimethylphosphine)cobalt(III)(532932-91-5)
• EPA Substance Registry System: trans-(1-carbonyl-2-oxo-1,2-diphenylethenediyl)(2-nitro-1-naphtholato)bis(trimethylphosphine)cobalt(III)(532932-91-5)

Safety Data

• Hazardous Substances Data: 532932-91-5(Hazardous Substances Data)

Upstream product

• 210900-98-4 mer-hydrido(1-carbonyl-2-oxo-1,2-diphenylethenediyl)tris(trimethylphosphine)cobalt(III) 
• 607-24-9 2-nitro-1-naphthol 

Relevant articles and documents

Reaction of 2-nitrophenols with high-valent trimethylphosphine complexes of cobalt

Acylphenolato(hydrido)cobalt(III) complexes Co(η2-CO,O)H(PMe3)3 (CO,O=1-carbonyl-2-oxo-5-tert-butyl-cyclohexendiyl; 1-carbonyl-2-oxo-cyclohexendiyl) by reaction with 2-nitrophenol eliminate dihydrogen and are converted to 2-nitrophenolatocobalt(III) compounds. With the former dianionic ligand an intermediate tris(phosphine) compound 1 containing a η1-nitrophenolato group is shown to adopt a meridional configuration in the crystal. In solution a η2-nitrophenolato coordination mode is usually attained after dissociation of one of the trimethylphosphines resulting in cis and trans isomers of bis(phosphine) compounds 2 and 3. bis(Phosphine) complexes 5-7 (cis, trans) were also obtained from Co(η2-CO,O)H(PMe3)3 (CO,O-1-carbonyl-2-oxo-3,4-benzo-cyclohexendiy1; 1-carbonyl-2-oxo-1,2-diphenyl-ethendiyl) and 2-nitronaphthol. No reduction of nitro groups neither by free PMe3 nor by excess CoH complex was observed although the corresponding nitrosonaphtholato complexes 8 and 9 were readily formed upon combining Co(η2-CO,O)H(PMe3)3(CO,O=1-carbonyl-2- oxo-5-tert-butyl-cyclohexendiyl; 1-carbonyl-2-oxo-1,2-diphenyl-ethendiyl) and 2-nitrosonaphthol.